Should I let him go?

He leaves me on read after I broke up with our relationship then waits a few days to read it and replies to my stories.
I told him I like someone else when the truth is I have an illness and I rather let him be happy with a healthy woman before I recover.
The other day he called me but I didn’t answer because after I confessed my love to him and he left me on read.
He did treated me like a serious relationship but out of love and because someone broke my heart I did that. He continues to watch my stories but he’s way to attractive for me even though I had better guys but w/ my illness I think he won’t last.
Should I let him go?
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